summaryrefslogtreecommitdiff
path: root/charpick/charpick.c
blob: 696d70674a622d852d08398614f81b3d4257f93f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
/* charpick.c  This is a mate panel applet that allow users to select
 * accented (and other) characters to be pasted into other apps.
 */

#include <gdk/gdkx.h>
#include <config.h>
#include <string.h>
#include <mate-panel-applet.h>
#include <mate-panel-applet-gsettings.h>
#ifdef HAVE_GUCHARMAP
#include <gucharmap/gucharmap.h>
#endif
#include "charpick.h"

/* The comment for each char list has the html entity names of the chars */
/* All gunicar codes should end in 0 */


/* This is the default list used when starting charpick the first time */
/* aacute, agrave, eacute, iacute, oacute, frac12, copy*/
/* static const gchar *def_list = "áàéíñóœ©"; */
static const gunichar def_code[] = {225, 224, 233, 237, 241, 243, 189, 169, 1579, 8364, 0};

/* aacute, agrave, acirc, atilde, auml. aring, aelig, ordf */
/* static const gchar *a_list = "áàâãäåæª"; */
static const gunichar a_code[] = {225, 224, 226, 227, 228, 229, 230, 170, 0};
/* static const gchar *cap_a_list = "ÁÀÂÃÄÅƪ"; */
static const gunichar cap_a_code[] = {192, 193, 194, 195, 196, 197, 198, 170, 0};
/* ccedil, cent, copy */
/* static const gchar *c_list = "çÇ¢©"; */
static const gunichar c_code[] = {231, 199, 162, 169, 0};
/* eacute, egrave, ecirc, euml, aelig */
/* static const gchar *e_list = "éèêëæ"; */
static const gunichar e_code[] = {232, 233, 234, 235, 230, 0};
/* static const gchar *cap_e_list = "ÉÈÊËÆ"; */
static const gunichar cap_e_code[] = {200, 201, 202, 203, 198, 0};
/* iacute, igrave, icirc, iuml */
/* static const gchar *i_list = "íìîï"; */
static const gunichar i_code[] = {236, 237, 238, 239, 0};
/* static const gchar *cap_i_list = "ÍÌÎÏ"; */
static const gunichar cap_i_code[] = {204, 205, 206, 207, 0};
/* ntilde (this is the most important line in this program.) */
/* static const gchar *n_list = "ñ, Ñ"; */
static const gunichar n_code[] = {241, 209, 0};
/* oacute, ograve, ocirc, otilde, ouml, oslash, ordm */
/* static const gchar *o_list = "óòôõöøº"; */
static const gunichar o_code[] = {242, 243, 244, 245, 246, 248, 176, 0};
/* static const gchar *cap_o_list = "ÓÒÔÕÖغ"; */
static const gunichar cap_o_code[] = {210, 211, 212, 213, 214, 216, 176, 0};
/* szlig, sect, dollar */
/* static const gchar *s_list = "ߧ$"; */
static const gunichar s_code[] = {223, 167, 36, 0};
/* eth, thorn */
/* static const gchar *t_list = "ðÐþÞ"; */
static const gunichar t_code[] = {240, 208, 254, 222, 0};
/* uacute, ugrave, ucirc, uuml */
/* static const gchar *u_list = "úùûü"; */
static const gunichar u_code[] = {249, 250, 251, 252, 0};
/* static const gchar *cap_u_list = "ÚÙÛÜ"; */
static const gunichar cap_u_code[] = {217, 218, 219, 220, 0};
/* yacute, yuml, yen Yes, there is no capital yuml in iso 8859-1.*/
/* static const gchar *y_list = "ýÝÿ¥"; */
static const gunichar y_code[] = {253, 221, 255, 165, 0};

/* extra characters unrelated to the latin alphabet. All characters in
   ISO-8859-1 should now be accounted for.*/
/* not shy macr plusmn */
/* static const gchar *dash_list = "¬­¯±"; */
static const gunichar dash_code[] = {172, 173, 175, 177, 0};
/* laquo raquo uml */
/* static const gchar *quote_list = "«»š·×"; */
static const gunichar quote_code[] = {171, 187, 168, 183, 215, 0};
/* curren, pound, yen, cent, dollar */
/* static const gchar *currency_list = "€£¥¢$"; */
static const gunichar currency_code[] = {164, 163, 165, 162, 36, 8364, 0};
/* sup1 frac12 */
/* static const gchar *one_list = "¹œŒ"; */
static const gunichar one_code[] = {185, 178, 179, 188, 189, 190, 0};
/* µ ¶ ® ¿ ¡ |  */
static const gunichar misc_code[] = {181, 182, 174, 191, 161, 124, 0};

/* language/region specific character groups */
/* South Africa: Venda, Tswana and Northern Sotho */
/* static const gchar *ZA_list = "ḓḽṋṱḒḼṊṰṅṄšŠ"; */
static const gunichar ZA_code[] = {7699, 7741, 7755, 7793, 7698, 7740, 7754, 7792, 7749, 7748, 353, 352, 0};
/* South Africa: Afrikaans */
/* static const gchar *af_ZA_list = "áéíóúýêîôûèäëïöüÁÉÍÓÚÝÊÎÔÛÈÄËÏÖÜ"; */
static const gunichar af_ZA_code[] = {225, 233, 237, 243, 250, 253, 234, 238, 244, 251, 232, 228, 235, 239, 246, 252, 193, 201, 205, 211, 218, 221, 202, 206, 212, 219, 200, 196, 203, 207, 214, 220, 0};

static const gunichar * const chartable[] = {
    def_code,
    a_code,
    cap_a_code,
    c_code,
    e_code,
    cap_e_code,
    i_code,
    cap_i_code,
    n_code,
    o_code,
    cap_o_code,
    s_code,
    t_code,
    u_code,
    cap_u_code,
    y_code,
    dash_code,
    quote_code,
    currency_code,
    one_code,
    misc_code,
    ZA_code,
    af_ZA_code
};

/* sets the picked character as the selection when it gets a request */
static void
charpick_selection_handler (GtkWidget        *widget,
                            GtkSelectionData *selection_data,
                            guint             info,
                            guint             time,
                            gpointer          data)
{
    charpick_data *p_curr_data = data;
    gint num;
    gchar tmp[7];
    num = g_unichar_to_utf8 (p_curr_data->selected_unichar, tmp);
    tmp[num] = '\0';

    gtk_selection_data_set_text (selection_data, tmp, -1);

    return;
}

/* untoggles the active toggle_button when we lose the selection */
static gint
selection_clear_cb (GtkWidget         *widget,
                    GdkEventSelection *event,
                    gpointer           data)
{
    charpick_data *curr_data = data;

    if (curr_data->last_toggle_button)
        gtk_toggle_button_set_active (curr_data->last_toggle_button, FALSE);

    curr_data->last_toggle_button = NULL;
    return TRUE;
}

static gint
toggle_button_toggled_cb (GtkToggleButton *button,
                          gpointer         data)
{
    charpick_data *curr_data = data;
    gint button_index;
    gboolean toggled;

    button_index = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (button), "index"));
    toggled = gtk_toggle_button_get_active (button);

    if (toggled)
    {
        gunichar unichar;
        if (curr_data->last_toggle_button && (button != curr_data->last_toggle_button))
            gtk_toggle_button_set_active (curr_data->last_toggle_button, FALSE);

        curr_data->last_toggle_button = button;
        gtk_widget_grab_focus (curr_data->applet);
        unichar = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (button), "unichar"));
        curr_data->selected_unichar = unichar;
        /* set this? widget as the selection owner */
        gtk_selection_owner_set (curr_data->applet,
                                 GDK_SELECTION_PRIMARY,
                                 GDK_CURRENT_TIME);
        gtk_selection_owner_set (curr_data->applet,
                                 GDK_SELECTION_CLIPBOARD,
                                 GDK_CURRENT_TIME);
        curr_data->last_index = button_index;
    }
    return TRUE;
}

/* This is a hack around the fact that gtk+ doesn't
 * propogate button presses on button2/3.
 */
static gboolean
button_press_hack (GtkWidget      *widget,
                   GdkEventButton *event,
                   GtkWidget      *applet)
{
    if (event->button == 3 || event->button == 2) {
        gtk_propagate_event (applet, (GdkEvent *) event);

        return TRUE;
    }

    return FALSE;
}

static gint
key_press_event (GtkWidget   *widget,
                 GdkEventKey *event,
                 gpointer     data)
{
#if 0
    charpick_data *p_curr_data = data;
    const gunichar *code = NULL;
    gchar inputchar = event->keyval;

    switch (inputchar)
      {
      case 'a' : code = a_code;
                 break;
      case 'A' : code = cap_a_code;
                 break;
      case 'c' :
      case 'C' : code = c_code;
                 break;
      case 'e' : code = e_code;
                 break;
      case 'E' : code = cap_e_code;
                 break;
      case 'i' : code = i_code;
                 break;
      case 'I' : code =  cap_i_code;
                 break;
      case 'n' :
      case 'N' : code = n_code;
                 break;
      case 'o' : code = o_code;
                 break;
      case 'O' : code = cap_o_code;
                 break;
      case 's' : code = s_code;
                 break;
      case 't' :
      case 'T' : code = t_code;
                 break;
      case 'u' : code = u_code;
                 break;
      case 'U' : code = cap_u_code;
                 break;
      case 'y' :
      case 'Y' : code = y_code;
                 break;
      case '-' : code = dash_code;
                 break;
      case '\"' : code = quote_code;
                 break;
      case '$' : code = currency_code;
                 break;
      case '1' :
      case '2' :
      case '3' : code = one_code;
                 break;
      case 'd' : code = NULL;
                 break;
      default :
                 return FALSE;
    }
    /* FIXME: what's wrong here ? */
    if (code)
      p_curr_data->charlist = g_ucs4_to_utf8 (code, -1, NULL, NULL, NULL);
    else
      p_curr_data->charlist = "hello";
    p_curr_data->last_index = NO_LAST_INDEX;
    p_curr_data->last_toggle_button = NULL;
    build_table (p_curr_data);
#endif
  return FALSE;
}

static void
menuitem_activated (GtkMenuItem   *menuitem,
                    charpick_data *curr_data)
{
    gchar *string;

    string = g_object_get_data (G_OBJECT (menuitem), "string");
    if (g_ascii_strcasecmp (curr_data->charlist, string) == 0)
        return;

    curr_data->charlist = string;
    build_table (curr_data);
    if (g_settings_is_writable (curr_data->settings, "current-list"))
        g_settings_set_string (curr_data->settings,
                               "current-list",
                               curr_data->charlist);
}

void
populate_menu (charpick_data *curr_data)
{
    GList *list = curr_data->chartable;
    GSList *group = NULL;
    GtkMenu *menu;
    GtkWidget *menuitem;

    if (curr_data->menu)
        gtk_widget_destroy (curr_data->menu);

    curr_data->menu = gtk_menu_new ();
    menu  = GTK_MENU (curr_data->menu);

    while (list) {
        gchar *string = list->data;
        menuitem = gtk_radio_menu_item_new_with_label (group, string);
        group = gtk_radio_menu_item_get_group (GTK_RADIO_MENU_ITEM (menuitem));
        gtk_widget_show (menuitem);
        g_object_set_data (G_OBJECT (menuitem), "string", string);
        g_signal_connect (G_OBJECT (menuitem), "activate",
                          G_CALLBACK (menuitem_activated),
                          curr_data);
        gtk_menu_shell_append (GTK_MENU_SHELL (menu), menuitem);
        if (g_ascii_strcasecmp (curr_data->charlist, string) == 0)
            gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (menuitem), TRUE);
        list = g_list_next (list);
    }
    build_table (curr_data);

    /*Set up custom theme and transparency support*/
    GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (menu));
    /* Fix any failures of compiz/other wm's to communicate with gtk for transparency */
    GdkScreen *screen = gtk_widget_get_screen (GTK_WIDGET (toplevel));
    GdkVisual *visual = gdk_screen_get_rgba_visual (screen);
    gtk_widget_set_visual (GTK_WIDGET (toplevel), visual);
    /* Set menu and it's toplevel window to follow panel theme */
    GtkStyleContext *context;
    context = gtk_widget_get_style_context (GTK_WIDGET (toplevel));
    gtk_style_context_add_class (context, "gnome-panel-menu-bar");
    gtk_style_context_add_class (context, "mate-panel-menu-bar");
}

static void
chooser_button_clicked (GtkButton     *button,
                        charpick_data *curr_data)
{
    if (gtk_widget_get_visible (curr_data->menu))
        gtk_menu_popdown (GTK_MENU (curr_data->menu));
    else {
        gtk_menu_set_screen (GTK_MENU (curr_data->menu),
                             gtk_widget_get_screen (GTK_WIDGET (curr_data->applet)));

        gtk_menu_popup_at_widget (GTK_MENU (curr_data->menu),
                                  GTK_WIDGET (button),
                                  GDK_GRAVITY_SOUTH_WEST,
                                  GDK_GRAVITY_NORTH_WEST,
                                  NULL);
    }
}

/* Force the button not to have any focus padding and let the focus
   indication be drawn on the label itself when space is tight. Taken from the clock applet.
   FIXME : This is an Evil Hack and should be fixed when the focus padding can be overridden at the gtk+ level */

static inline void force_no_button_padding (GtkWidget *widget)
{
    GtkCssProvider *provider;

    provider = gtk_css_provider_new ();

    gtk_css_provider_load_from_data (provider,
                                     "#charpick-applet-button {\n"
                                     "border-width: 0px;\n"
                                     "padding: 0px;\n"
                                     "margin: 0px;\n"
                                     "}",
                                     -1,
                                     NULL);

    gtk_style_context_add_provider (gtk_widget_get_style_context (widget),
                                    GTK_STYLE_PROVIDER (provider),
                                    GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);

    g_object_unref (provider);

    gtk_widget_set_name (widget, "charpick-applet-button");
}

/* creates table of buttons, sets up their callbacks, and packs the table in
   the event box */

void
build_table (charpick_data *p_curr_data)
{
    GtkWidget *box, *button_box, **row_box;
    GtkWidget *button, *arrow;
    gint i = 0, len = g_utf8_strlen (p_curr_data->charlist, -1);
    GtkWidget **toggle_button;
    gchar *charlist;
    gint max_width=1, max_height=1;
    gint size_ratio;

    toggle_button = g_new (GtkWidget *, len);

    if (p_curr_data->box)
        gtk_widget_destroy (p_curr_data->box);

    if (p_curr_data->panel_vertical)
        box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
    else
        box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);

    gtk_widget_show (box);
    p_curr_data->box = box;

    button = gtk_button_new ();
    if (g_list_length (p_curr_data->chartable) != 1)
    {
        gtk_widget_set_tooltip_text (button, _("Available palettes"));

        switch (mate_panel_applet_get_orient (MATE_PANEL_APPLET (p_curr_data->applet))) {
            case MATE_PANEL_APPLET_ORIENT_DOWN:
                arrow = gtk_image_new_from_icon_name ("pan-down-symbolic",
                                                      GTK_ICON_SIZE_MENU);
                break;
            case MATE_PANEL_APPLET_ORIENT_UP:
                arrow = gtk_image_new_from_icon_name ("pan-up-symbolic",
                                                      GTK_ICON_SIZE_MENU);
                break;
            case MATE_PANEL_APPLET_ORIENT_LEFT:
                arrow = gtk_image_new_from_icon_name ("pan-start-symbolic",
                                                      GTK_ICON_SIZE_MENU);
                break;
            case MATE_PANEL_APPLET_ORIENT_RIGHT:
                arrow = gtk_image_new_from_icon_name ("pan-end-symbolic",
                                                      GTK_ICON_SIZE_MENU);
                break;
            default:
                g_assert_not_reached ();
        }
        gtk_container_add (GTK_CONTAINER (button), arrow);

        gtk_button_set_relief (GTK_BUTTON (button), GTK_RELIEF_NONE);

        /* FIXME : evil hack (see force_no_button_padding) */
        force_no_button_padding (button);

        gtk_box_pack_start (GTK_BOX (box), button, TRUE, TRUE, 0);
        g_signal_connect (G_OBJECT (button), "clicked",
                          G_CALLBACK (chooser_button_clicked),
                          p_curr_data);

        g_signal_connect (G_OBJECT (button), "button_press_event",
                          G_CALLBACK (button_press_hack),
                          p_curr_data->applet);
    }

    charlist = g_strdup (p_curr_data->charlist);
    for (i = 0; i < len; i++) {
        gchar label[7];
        GtkRequisition req;
        gchar *atk_desc;
        gchar *name;
        g_utf8_strncpy (label, charlist, 1);
        charlist = g_utf8_next_char (charlist);

#ifdef HAVE_GUCHARMAP
        /* TRANSLATOR: This sentance reads something like 'Insert "PILCROW SIGN"'
         *             hopefully, the name of the unicode character has already
         *             been translated.
         */
        name = g_strdup_printf (_("Insert \"%s\""),
                                gucharmap_get_unicode_name (g_utf8_get_char (label)));
#else
        name = g_strdup (_("Insert special character"));
#endif

        toggle_button[i] = gtk_toggle_button_new_with_label (label);
        atk_desc =  g_strdup_printf (_("insert special character %s"), label);

        set_atk_name_description (toggle_button[i], NULL, atk_desc);
        g_free (atk_desc);
        gtk_widget_show (toggle_button[i]);
        gtk_button_set_relief (GTK_BUTTON (toggle_button[i]), GTK_RELIEF_NONE);

        /* FIXME : evil hack (see force_no_button_padding) */
        force_no_button_padding (toggle_button[i]);

        gtk_widget_set_tooltip_text (toggle_button[i], name);
        g_free (name);

        gtk_widget_get_preferred_size (toggle_button[i], NULL, &req);

        max_width = MAX (max_width, req.width);
        max_height = MAX (max_height, req.height-2);

        g_object_set_data (G_OBJECT (toggle_button[i]), "unichar",
                           GINT_TO_POINTER (g_utf8_get_char (label)));

        g_signal_connect (G_OBJECT (toggle_button[i]), "toggled",
                          G_CALLBACK (toggle_button_toggled_cb),
                          p_curr_data);

        g_signal_connect (G_OBJECT (toggle_button[i]), "button_press_event",
                          G_CALLBACK (button_press_hack),
                          p_curr_data->applet);
    }

    if (p_curr_data->panel_vertical) {
        size_ratio = p_curr_data->panel_size / max_width;
        button_box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
    } else {
        size_ratio = p_curr_data->panel_size / max_height;
        button_box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
    }

    gtk_box_set_homogeneous (GTK_BOX (button_box), TRUE);
    gtk_box_pack_start (GTK_BOX (box), button_box, TRUE, TRUE, 0);

    size_ratio = MAX (size_ratio, 1);
    row_box = g_new0 (GtkWidget *, size_ratio);
    for (i=0; i < size_ratio; i++) {
        if (!p_curr_data->panel_vertical)
            row_box[i] = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
        else
            row_box[i] = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);

        gtk_box_set_homogeneous (GTK_BOX (row_box[i]), TRUE);
        gtk_box_pack_start (GTK_BOX (button_box), row_box[i], TRUE, TRUE, 0);
    }

    for (i = 0; i <len; i++) {
        int delta = len/size_ratio;
        int index;

        if (delta > 0)
            index = i / delta;
        else
            index = i;

        index = CLAMP (index, 0, size_ratio-1);
        gtk_box_pack_start (GTK_BOX (row_box[index]),
                            toggle_button[i],
                            TRUE, TRUE, 0);
    }

    g_free (toggle_button);
    g_free (row_box);

    gtk_container_add (GTK_CONTAINER (p_curr_data->applet), box);
    gtk_widget_show_all (p_curr_data->box);

    p_curr_data->last_index = NO_LAST_INDEX;
    p_curr_data->last_toggle_button = NULL;
}

static void
applet_size_allocate (MatePanelApplet *applet,
                      GtkAllocation   *allocation,
                      gpointer         data)
{
    charpick_data *curr_data = data;
    if (curr_data->panel_vertical) {
        if (curr_data->panel_size == allocation->width)
            return;
        curr_data->panel_size = allocation->width;
    } else {
        if (curr_data->panel_size == allocation->height)
            return;
        curr_data->panel_size = allocation->height;
    }

    build_table (curr_data);
    return;
}

static void
applet_change_orient (MatePanelApplet      *applet,
                      MatePanelAppletOrient o,
                      gpointer              data)
{
    charpick_data *curr_data = data;
    if (o == MATE_PANEL_APPLET_ORIENT_UP ||
        o == MATE_PANEL_APPLET_ORIENT_DOWN)
        curr_data->panel_vertical = FALSE;
    else
        curr_data->panel_vertical = TRUE;

    build_table (curr_data);
    return;
}

static void
about (GtkAction     *action,
       charpick_data *curr_data)
{
    static const char * const authors[] = {
            "Alexandre Muñiz <munizao@xprt.net>",
            "Kevin Vandersloot",
            NULL
    };

    static const gchar* documenters[] = {
            "Dan Mueth <d-mueth@uchicago.edu>",
            N_("Sun GNOME Documentation Team <gdocteam@sun.com>"),
            N_("MATE Documentation Team"),
            NULL
    };

#ifdef ENABLE_NLS
    const char **p;
    for (p = documenters; *p; ++p)
        *p = _(*p);
#endif

    gtk_show_about_dialog (NULL,
                           "title",              _("About Character Palette"),
                           "version",            VERSION,
                           "copyright",          _("Copyright \xc2\xa9 1998, 2004-2005 GNOME Applets Maintainers and others\n"
                                                   "Copyright \xc2\xa9 2012-2021 MATE developers"),
                           "comments",           _("MATE Panel applet for selecting strange "
                                                   "characters that are not on the keyboard. "
                                                   "Released under GNU General Public Licence."),
                           "authors",            authors,
                           "documenters",        documenters,
                           "translator-credits", _("translator-credits"),
                           "logo-icon-name",     "accessories-character-map",
                           NULL);
}

static void
help_cb (GtkAction     *action,
         charpick_data *curr_data)
{
    GError *error = NULL;

    gtk_show_uri_on_window (NULL,
                            "help:mate-char-palette",
                            gtk_get_current_event_time (),
                            &error);

    if (error) { /* FIXME: the user needs to see this */
        g_warning ("help error: %s\n", error->message);
        g_error_free (error);
        error = NULL;
    }
}

static void
applet_destroy (GtkWidget *widget,
                gpointer   data)
{
    charpick_data *curr_data = data;

    g_return_if_fail (curr_data);

    if (curr_data->about_dialog)
        gtk_widget_destroy (curr_data->about_dialog);
    if (curr_data->propwindow)
        gtk_widget_destroy (curr_data->propwindow);
    if (curr_data->box)
        gtk_widget_destroy (curr_data->box);
    if (curr_data->menu)
        gtk_widget_destroy (curr_data->menu);
    g_free (curr_data);
}

void
save_chartable (charpick_data *curr_data)
{
    mate_panel_applet_settings_set_glist (curr_data->settings,
                                          "chartable",
                                          curr_data->chartable);
}

static void
get_chartable (charpick_data *curr_data)
{
    gint i, n;
    GList *value = NULL;

    value = mate_panel_applet_settings_get_glist (curr_data->settings, "chartable");
    if (value) {
        curr_data->chartable = value;
    }
    else {
        n = G_N_ELEMENTS (chartable);
        for (i=0; i<n; i++) {
            gchar *string;

            string = g_ucs4_to_utf8 (chartable[i], -1, NULL, NULL, NULL);
            curr_data->chartable = g_list_append (curr_data->chartable, string);
        }
        if (! g_settings_is_writable (curr_data->settings, "chartable"))
            save_chartable (curr_data);
    }
}

static const GtkActionEntry charpick_applet_menu_actions [] = {
    { "Preferences", "document-properties", N_("_Preferences"),
      NULL, NULL,
      G_CALLBACK (show_preferences_dialog) },
    { "Help", "help-browser", N_("_Help"),
      NULL, NULL,
      G_CALLBACK (help_cb) },
    { "About", "help-about", N_("_About"),
      NULL, NULL,
      G_CALLBACK (about) }
};

void
set_atk_name_description (GtkWidget   *widget,
                          const gchar *name,
                          const gchar *description)
{
    AtkObject *aobj;
    aobj = gtk_widget_get_accessible (widget);
    /* return if gail is not loaded */
    if (GTK_IS_ACCESSIBLE (aobj) == FALSE)
        return;
    if (name)
        atk_object_set_name (aobj, name);
    if (description)
        atk_object_set_description (aobj, description);
}

static void
make_applet_accessible (GtkWidget *applet)
{
    set_atk_name_description (applet, _("Character Palette"), _("Insert characters"));
}

static gboolean
charpicker_applet_fill (MatePanelApplet *applet)
{
    MatePanelAppletOrient orientation;
    charpick_data *curr_data;
    GdkAtom utf8_atom;
    GList *list;
    gchar *string;
    GtkActionGroup *action_group;

    g_set_application_name (_("Character Palette"));

    gtk_window_set_default_icon_name ("accessories-character-map");

    mate_panel_applet_set_flags (applet, MATE_PANEL_APPLET_EXPAND_MINOR);

    curr_data = g_new0 (charpick_data, 1);
    curr_data->last_index = NO_LAST_INDEX;
    curr_data->applet = GTK_WIDGET (applet);
    curr_data->about_dialog = NULL;
    curr_data->add_edit_dialog = NULL;
    curr_data->settings = mate_panel_applet_settings_new (applet,
                                                          "org.mate.panel.applet.charpick");

    get_chartable (curr_data);

    string  = g_settings_get_string (curr_data->settings, "current-list");
    if (string) {
        list = curr_data->chartable;
        while (list) {
            if (g_ascii_strcasecmp (list->data, string) == 0)
                curr_data->charlist = list->data;
            list = g_list_next (list);
        }
        /* FIXME: yeah leak, but this code is full of leaks and evil
         point shuffling.  This should really be rewritten
         -George */
        if (curr_data->charlist == NULL)
            curr_data->charlist = string;
        else
            g_free (string);
    }
    else {
        curr_data->charlist = curr_data->chartable->data;
    }

    curr_data->panel_size = mate_panel_applet_get_size (applet);

    orientation = mate_panel_applet_get_orient (applet);
    curr_data->panel_vertical = (orientation == MATE_PANEL_APPLET_ORIENT_LEFT)
                             || (orientation == MATE_PANEL_APPLET_ORIENT_RIGHT);
    build_table (curr_data);

    g_signal_connect (G_OBJECT (curr_data->applet), "key_press_event",
                      G_CALLBACK (key_press_event), curr_data);

    utf8_atom = gdk_atom_intern ("UTF8_STRING", FALSE);

    gtk_selection_add_target (curr_data->applet,
                              GDK_SELECTION_PRIMARY,
                              utf8_atom, 0);

    gtk_selection_add_target (curr_data->applet,
                              GDK_SELECTION_CLIPBOARD,
                              utf8_atom, 0);

    g_signal_connect (G_OBJECT (curr_data->applet), "selection_get",
                                G_CALLBACK (charpick_selection_handler),
                                curr_data);

    g_signal_connect (G_OBJECT (curr_data->applet), "selection_clear_event",
                      G_CALLBACK (selection_clear_cb),
                      curr_data);

    make_applet_accessible (GTK_WIDGET (applet));

    /* session save signal */
    g_signal_connect (G_OBJECT (applet), "change_orient",
                      G_CALLBACK (applet_change_orient), curr_data);

    g_signal_connect (G_OBJECT (applet), "size_allocate",
                      G_CALLBACK (applet_size_allocate), curr_data);

    g_signal_connect (G_OBJECT (applet), "destroy",
                      G_CALLBACK (applet_destroy), curr_data);

    gtk_widget_show_all (GTK_WIDGET (applet));

    action_group = gtk_action_group_new ("Charpicker Applet Actions");
    gtk_action_group_set_translation_domain (action_group, GETTEXT_PACKAGE);
    gtk_action_group_add_actions (action_group,
                                  charpick_applet_menu_actions,
                                  G_N_ELEMENTS (charpick_applet_menu_actions),
                                  curr_data);

    mate_panel_applet_setup_menu_from_resource (MATE_PANEL_APPLET (applet),
                                                CHARPICK_RESOURCE_PATH "charpick-applet-menu.xml",
                                                action_group);

    if (mate_panel_applet_get_locked_down (MATE_PANEL_APPLET (applet))) {
        GtkAction *action;

        action = gtk_action_group_get_action (action_group, "Preferences");
        gtk_action_set_visible (action, FALSE);
    }
    g_object_unref (action_group);

    register_stock_for_edit ();
    populate_menu (curr_data);

    return TRUE;
}

static gboolean
charpicker_applet_factory (MatePanelApplet *applet,
                           const gchar     *iid,
                           gpointer         data)
{
    gboolean retval = FALSE;

    if (!strcmp (iid, "CharpickerApplet"))
        retval = charpicker_applet_fill (applet);

    return retval;
}

MATE_PANEL_APPLET_OUT_PROCESS_FACTORY ("CharpickerAppletFactory",
                                       PANEL_TYPE_APPLET,
                                       "char-palette",
                                       charpicker_applet_factory,
                                       NULL)